Identifying the Driver of Pulsating Aurora-Reference-Cited by-同舟云学术

Identifying the Driver of Pulsating Aurora

Published:2010-10 Issue:6000 Volume:330 Page:81-84
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Nishimura Y.¹²,Bortnik J.¹,Li W.¹,Thorne R. M.¹,Lyons L. R.¹,Angelopoulos V.³⁴⁵,Mende S. B.⁴,Bonnell J. W.⁴,Le Contel O.⁶,Cully C.⁷,Ergun R.⁸,Auster U.⁹

Affiliation:

1. Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, CA 90095, USA.

2. Solar-Terrestrial Environment Laboratory, Nagoya University, Nagoya, Aichi 464-8601, Japan.

3. Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095, USA.

4. Space Sciences Laboratory, University of California, Berkeley, CA 94720–7450, USA.

5. Jet Propulsion Laboratory. National Aeronautics and Space Administration, Pasadena, CA 91109, USA.

6. Laboratoire de Physique des Plasmas, CNRS/Ecole Polytechnique/UPMC/Paris-Sud 11, F-94107 St Maur-des-Fossés, France.

7. Swedish Institute of Space Physics, SE-981 28 Uppsala, Sweden.

8. Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO 80303–7814, USA.

9. Institut für Geophysik und extraterrestrische Physik, Technischen Universität Braunschweig, Braunschweig D-38106, Germany.

Abstract

Auroral Chorus Energetic particles that arrive from near-Earth space produce photon emissions—the aurora—as they bombard the atmosphere in the polar regions. The pulsating aurora, which is characterized by temporal intensity variations, is thought to be caused by modulations in electron precipitation possibly produced by resonance with electromagnetic waves in Earth's magnetosphere. Nishimura et al. (p. 81 ) present a detailed study of an event that showed a good correlation between the temporal changes in auroral luminosity and chorus emission—a type of electromagnetic wave occurring in Earth's magnetosphere. The results points to chorus waves as the driver of the pulsating aurora.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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